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(No Model.) 2 Sheets-Sheet 1. A. J. ALLEN.

GOVERNOR FOR STEAM ENGINES,

N0.319,658. Patented June 9, 1885.

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ATTORNEYS.

N. PETERS, Phoko-mhcgnpher, Walhingion. D. C.

(No Model.) 2 Sheets-Sheet 2.v

A. J. ALLEN.

GOVERNOR FOR STEAM ENGINES.

No. 319,658. Patented June 9 1885] I V 1 151? y j AZ 2 a i I g a Z/ l I 72/ t I iii .17 l a 05 it 4 5' Q if l ii a; N v

QITNESSES: MENTOR: g MM- jZ/PMJQ ATTORNEYS.

N PETERS. FhalvLilhagnfiler. Withlngion, D. C.

i NITED STATES FFI AARON J. ALLEN, OF HOPE, RHODE ISLAND.

GOVERNOR FOR STEAM-=ENGINES.

Application filed December 11, 1884.

To all whom it may concern:

Be it known that I, AARON J. ALLEN, of Hope, in the county of Providence and State of Rhode Island, have invented a new and Improved Governor for Steam-Engines, of

which the following is a full, clear, and exact description. I

The object of my inventionis to compensate for any variation of steam pressure or load upon the engine, and at the same time maintain uniform speed, specially in cases where the load upon the engine is constantly varied and to a large extent-as, for instance, in factories for the manufacture of textile fabrics. To these ends I combine with a governor of the ordinary type a rotating sleeve, gearing, and a sliding clutch, by which the spindle operating the cut-off or throttle is shortened and lengthened in the manner to give more or less steam, as may be required by the load, without any great change of speed, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation of a governor with my improvements. Fig. 2 is a sectional elevation of certain parts inlarger size. Fig. 3 shows the invention as applied to another style of governor.

Referring to Figs. 1 and, 2, the governor shown is of the type used with tho Corliss engine, A being the rotating spindle carrying the arms and balls B, which are connected to a sleeve, 0, on the spindle, and D is a link from the sleeve 0, that will be connected to the plunger in the dash-pot for preventing undue oscillation. The sleeve 0 is provided with an arm, a, which is fitted with a sleeve, b, and cap or nut c, by which a vertical spindle, d, is sustained and may be adjusted in length. On the lower end of the spindle d is a nut, 6, held by a head upon the lower end of the spindle, and engaging the threaded end of a link. f, which will be connected to the cut-off gearing or to the throttle. There is a friction-disk, t, in the nut, binding it to the spindle, and for allowing the spindle to turn without straining any of the parts after the nut ehas reached its (No model.)

extremes of movement. .Upon the pedestal of the governor is a yoke through which the spindle d passes, and within the yoke are two reverse miter-wheels, g 71, that are fast upon the sleeves t around the spindle. This yoke also carries an intermediate miter-wheel, 7., by which the two wheels 9 h are connected, and upon the upper end of the upper sleeve, 2', is a gear-wheel, Z, that meshes with the pinion m on the governor spindle A, whereby the two sleeves i are rotated, one in the opposite direction to the other. Upon the spindle dis a clutch-pin, n, which in its normal position is between the inner ends of the two sleeves a, and the latter are grooved to allow the clutch-pin to engage with either one as the spindle moves either up or down.

The operation is as follows: With the en gine running at the proper speed, the clutchpin is at theintermediate point; but any change of speed will immediately cause the pin it to engage in one or the other of the sleeves or clutches t, thereby causing the spindle d to be rotated in the same direction as the clutch with which the pin is engaged. This rotation of the spindle d causes the rotation of the nut e and the rise and fall of the link f, thereby acting upon the cut-off gear or on the throttle to immediately bring the engine back to its proper speed. The adjusting-nut c and sleeve (2, being screwed together tightly on the spindle d, revolve with it. In this manner the "speed of the engine is perfectly controlled under all the Varying conditions of work.

In Fig. 3 the invention is shown as applied to a different form of centrifugal governor. In this case the intermediate initerwheel It gives rotation to the two miter-wheels g h, which are carried by sleeves loose upon the governor-spindle, and the clutch-pin n is upon the governor-spindle, and engages either one sleeve or the other as the balls rise and fall.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a speed-governor, the combination of the spindle (I, provided with the clutch-pin n,

the gearing g, h, and 7c, and the grooved L sleeves z, rotating continuously in opposite directions, imparting motion in either direc- 10o tion to said spindle while permitting of unrein said not in contact with the lower end of strained longitudinal motion of the-spindle to said spindle, substantially as'and for the purmore fully control the action of the engine, snbpose set forth.

stantially as and for the purpose set forth. AARON J. ALLEN. 5 2. The combination, with the spindle dand Witnesses:

the connection f to the cut-off o1- throttle, of A. LOWELL JOHNSON;

the compensating nut e, and the disk t, fitted NATEAN A. SIssoN. 

